A method employing two-dimensional spline fits of spatially and temporally random hydrographic data is developed in order to be able to determine seasonally averaged geostrophic currents. The method is used in an analysis of the currents in the Southern California Bight. (Author).

A monthly mean sea current was calculated for the west coast of the United States and the Hawaiian Islands area on a spatial grid of 1 deg by 1 deg. These mean geostrophic velocities were computer generated from dynamic height data obtained from the National Oceanographic Data Center. A method employing two-dimensional spline fits of spatially and temporally random hydrographic data was developed to determine the monthly averaged geostrophic currents. (Author).